DVB-RCS timeslot scheduling research based on smoothed round robin
基于平滑轮询的DVB-RCS时隙调度

Applying smoothed round robin SRR in timeslot scheduling within DVB-RCS digital video broadcasting-return channel via satellite, makes timeslots obtained by the return channel satellite terminal RCST users evenly distributed in the scheduling table to decrease standard deviation of package delay. Firstly, it sorted RCST users by their weights in descending order. Then respectively coded the weights for these RCST users into binary code represented as the vectors. IT comprised the weight matrix by these weight vectors, while formed weight spread sequence according to the dimension of the weight vector. Combined with the weight matrix, set the scheduling order among RCST users by traversing weight spread sequence. The simulation results show that SRR scheduling algorithm can decrease changing range for package delay, and lower standard deviation of package delay comparing with round robin RR scheduling algorithm.